NOAA has issued a Winter Storm Warning & Winter Weather Advisory for Lake Tahoe and Mammoth, CA today and tonight that is calling for up to 18″ of snow by tomorrow morning.  

Snow levels may get a bit high on Friday evening but overall this storm is looking damned good.

* Snow Accumulations: 10 to 18 inches above 7000 feet with up to
  6 inches elsewhere. Heaviest snow along and west of Highway
  89. - NOAA Reno, NV today

“A couple of typical spring storms will impact the region this coming weekend. The first storm Friday into early Saturday will bring gusty winds, valley rain, and mountain rain/snow. Snow levels will be between 5000-7000’ early on Friday which will rise to 6500–7500’ by Friday evening. Showers will taper off by early Saturday. The likelihood for enhanced runoff from low elevation rain remains high. Expect wind impacts to aviation and travel disruptions for the ski commute Friday. The next storm Sunday afternoon into Monday will bring similar conditions with light to moderate rain, mountain snow, and gusty winds. Snow levels will drop into the foothills by Monday morning, tapering to rain/snow showers at all elevations Monday evening. This storm could linger into Tuesday morning.” –  NOAA Reno, NV yesterday

Yesterday was a great, sunny powder day at Squaw Valley (Silverado, Palisades, Chimney, Reverse Traverse, Granite Chief Peak).

Today will be a storm day with mostly the lower mountain open at Squaw.

Tomorrow will be a great powder day at Squaw.

WINTER STORM WARNING for CALIFORNIA:

URGENT - WINTER WEATHER MESSAGE
National Weather Service Sacramento CA
410 AM PDT Fri Mar 24 2017

...Another round of snow for northern California mountains...

.A Pacific frontal system will move through northern California
today bringing heavy snow over the mountains with snow levels down
to many passes. In addition to the snowfall, gusty winds are
likely at times especially during the day today. If planning
travel through the Sierra Cascade range or northern mountains today
through early Saturday, expect delays and chain controls. Be
prepared and check the latest weather and road reports before
departure.

West Slope Northern Sierra Nevada-
Including the city of Blue Canyon

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM PDT
SATURDAY...

* TIMING...Snowfall increasing this morning and continuing through Saturday
  morning.

* SNOW AMOUNTS...10 to 14 inches above 5500 feet with up to two
feet highest elevations.

* MAIN IMPACT...Heavy snow over the passes with chain controls
  and travel delays likely.

* OTHER IMPACTS...Gusty winds up to 40 mph highest elevations
causing white-out conditions at times.

WINTER WEATHER ADVISORY for CALIFORNIA:

URGENT - WINTER WEATHER MESSAGE
National Weather Service Reno NV
303 AM PDT Fri Mar 24 2017

Greater Lake Tahoe Area-
Including the cities of South Lake Tahoe, Truckee, Stateline,
and Incline Village

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 AM THIS
MORNING TO 4 AM PDT SATURDAY...

* Timing: Snow will spread into the Tahoe Basin early this morning
  and continue through tonight. The most intense snowfall will
  occur in the afternoon and evening.

* Snow Accumulations: 10 to 18 inches above 7000 feet with up to
  6 inches elsewhere. Heaviest snow along and west of Highway
  89.

* Snow Levels: Near lake level this morning then rising to 6500
  feet during the day. Snow levels then fall back to lake level
  this evening.

* Winds: Southwest 15 to 25 mph with gusts to 40 mph.

* Lake Tahoe Wave Heights: 1 to 4 feet with highest waves from
  mid lake to the north and east shores.

* Impacts: Snow and gusty winds will impact Sierra passes today.
  Snow will then begin to impact roads at lower elevations late
  today and tonight. Lake waters will be rough and choppy.

https://www.youtube.com/watch?v=Sm0DmfupJf0